WO2013149866A2 - Procédé et dispositif de transformation d'une image - Google Patents

Procédé et dispositif de transformation d'une image Download PDF

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Publication number
WO2013149866A2
WO2013149866A2 PCT/EP2013/056215 EP2013056215W WO2013149866A2 WO 2013149866 A2 WO2013149866 A2 WO 2013149866A2 EP 2013056215 W EP2013056215 W EP 2013056215W WO 2013149866 A2 WO2013149866 A2 WO 2013149866A2
Authority
WO
WIPO (PCT)
Prior art keywords
image
location
feature
reduced
transformation
Prior art date
Application number
PCT/EP2013/056215
Other languages
English (en)
Other versions
WO2013149866A3 (fr
Inventor
Sanbao Xu
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Priority to CN201380018722.3A priority Critical patent/CN104412298B/zh
Priority to US14/390,647 priority patent/US20150170331A1/en
Publication of WO2013149866A2 publication Critical patent/WO2013149866A2/fr
Publication of WO2013149866A3 publication Critical patent/WO2013149866A3/fr

Links

Classifications

    • G06T3/10—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4053—Super resolution, i.e. output image resolution higher than sensor resolution
    • G06T3/4069—Super resolution, i.e. output image resolution higher than sensor resolution by subpixel displacement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
    • G06T7/33—Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/743—Bracketing, i.e. taking a series of images with varying exposure conditions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20016—Hierarchical, coarse-to-fine, multiscale or multiresolution image processing; Pyramid transform
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing

Abstract

Selon un premier aspect, la présente invention concerne un procédé de transformation d'une première image représentant une vue d'un décor. Le procédé comprend les étapes consistant à : obtenir la première image; obtenir une première image réduite en diminuant la densité des informations de la première image; obtenir une référence d'image relative au décor, la référence d'image comprenant une première référence à une première caractéristique de référence au niveau d'un premier emplacement de référence; puis identifier une première caractéristique d'image du décor au niveau d'un premier emplacement d'image dans la première image réduite. La première caractéristique de référence est mise en correspondance avec la première caractéristique d'image. Si la première caractéristique de référence correspond à la première caractéristique d'image, une transformation d'image est calculée en calculant un décalage de la caractéristique du premier emplacement de référence au premier emplacement d'image. Puis une première image transformée est obtenue en appliquant la transformation d'image à la première image au moyen des paramètres de transformée estimés à partir des images réduites mais modifiés à l'échelle originale.
PCT/EP2013/056215 2012-04-04 2013-03-25 Procédé et dispositif de transformation d'une image WO2013149866A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380018722.3A CN104412298B (zh) 2012-04-04 2013-03-25 用于变换图像的方法和设备
US14/390,647 US20150170331A1 (en) 2012-04-04 2013-03-25 Method and Device for Transforming an Image

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP12163131.1 2012-04-04
EP12163131.1A EP2648157A1 (fr) 2012-04-04 2012-04-04 Procédé et dispositif pour transformer une image
US201261638202P 2012-04-25 2012-04-25
US61/638,202 2012-04-25

Publications (2)

Publication Number Publication Date
WO2013149866A2 true WO2013149866A2 (fr) 2013-10-10
WO2013149866A3 WO2013149866A3 (fr) 2014-02-13

Family

ID=45926453

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/056215 WO2013149866A2 (fr) 2012-04-04 2013-03-25 Procédé et dispositif de transformation d'une image

Country Status (4)

Country Link
US (1) US20150170331A1 (fr)
EP (1) EP2648157A1 (fr)
CN (1) CN104412298B (fr)
WO (1) WO2013149866A2 (fr)

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CN113450384A (zh) * 2021-06-11 2021-09-28 力源电力设备股份有限公司 基于编码标志信息的指针式表计物理信息读取方法

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US9691140B2 (en) 2014-10-31 2017-06-27 Intel Corporation Global matching of multiple images
EP3427664A1 (fr) * 2017-07-13 2019-01-16 Koninklijke Philips N.V. Un dispositif de correction de la diffusion dans une image radiographique et un procédé de correction de la diffusion dans une image aux rayons x.
KR20200016443A (ko) * 2018-08-07 2020-02-17 주식회사 마크애니 콘텐츠의 영상 데이터 복원방법 및 장치
CN109300120B (zh) * 2018-09-12 2020-06-05 首都师范大学 遥感成像仿真方法及装置
CN109712071B (zh) * 2018-12-14 2022-11-29 电子科技大学 基于航迹约束的无人机图像拼接与定位方法
CN112150558B (zh) * 2020-09-15 2024-04-12 阿波罗智联(北京)科技有限公司 用于路侧计算设备的障碍物三维位置获取方法及装置

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Publication number Priority date Publication date Assignee Title
WO1999006943A1 (fr) * 1997-08-01 1999-02-11 Sarnoff Corporation Procede et appareil destines a effectuer un alignement multitrame, du local au global, pour former des images en mosaiques
US6456731B1 (en) * 1998-05-21 2002-09-24 Sanyo Electric Co., Ltd. Optical flow estimation method and image synthesis method
US20020109833A1 (en) * 2000-11-27 2002-08-15 Naoki Chiba Apparatus for and method of calculating lens distortion factor, and computer readable storage medium having lens distortion factor calculation program recorded thereon
WO2007015374A2 (fr) * 2005-08-02 2007-02-08 Casio Computer Co., Ltd. Appareil de traitement d'images et programme de traitement d'images
EP1873715A1 (fr) * 2006-06-30 2008-01-02 THOMSON Licensing Procédé pour estimer la distorsion géométrique entre deux images
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CN113450384A (zh) * 2021-06-11 2021-09-28 力源电力设备股份有限公司 基于编码标志信息的指针式表计物理信息读取方法
CN113450384B (zh) * 2021-06-11 2023-12-29 力源电力设备股份有限公司 基于编码标志信息的指针式表计物理信息读取方法

Also Published As

Publication number Publication date
WO2013149866A3 (fr) 2014-02-13
EP2648157A1 (fr) 2013-10-09
CN104412298B (zh) 2018-04-06
US20150170331A1 (en) 2015-06-18
CN104412298A (zh) 2015-03-11

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